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larisa [96]
3 years ago
7

The principal elements found in living things are carbon, hydrogen, oxygen, and ______.

Biology
2 answers:
seropon [69]3 years ago
7 0
The answer is nitrogen
Ivenika [448]3 years ago
5 0

The principal elements found in living things are carbon, hydrogen, oxygen, and nitrogen.

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3. When creatures have similar traits, what does that tell you about them?
kvasek [131]

Answer:

that they are apart of the same species

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Pigeons learn to flap their wings to avoid shock ________ easily than they learn to peck a disk to avoid shock. they learn to fl
Gnom [1K]
<span>Pigeons learn to flap their wings to avoid shock more easily than they learn to peck a disk to avoid shock. they learn to flap their wings to obtain food less easily than they learn to peck a disk to obtain food.

That's what'd I'd assume the answer would be.</span>
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1. Give 2 similarities between each of the skulls that might lead to the conclusion that these are all related.
Shtirlitz [24]

Answer:

qns 2 ans is Increase in size, reduction in # of toes.

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Which of the following observations tells the biologist that the organism is eukaryotic? Choose all that apply.
melomori [17]

Answer:

The answers are B, C, D.

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3 years ago
How are the proteins used for active transport different from those used for facilitated diffusion?
Nataly [62]
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If we talk about active transport mechanisms, it means that the proteins basically require the use of the energy, that energy is usually in the form of adenosine triphosphate (ATP). but if we talk about the facilitated diffusion, then the solute can move from the regions of lower concentration to the region of higher concentration. In this way, the proteins used for active transport different from those used for facilitated diffusion.

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